Calculate the optimal percentage of your bankroll to stake on a bet.
The Kelly Criterion is a formula that determines the optimal stake size to maximise long-term bankroll growth. It balances risk and reward — bet too much and a losing streak wipes you out, bet too little and you leave growth on the table.
Formula: Kelly % = (bp - q) / b, where b = odds - 1, p = win probability, q = 1 - p.
Most sharp bettors use fractional Kelly (typically half or quarter) to reduce variance while still capturing most of the growth advantage.
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Disclaimer: BRT Sports provides data-driven signals for informational purposes only and does not guarantee profits. Sports betting carries inherent risk — you can lose money. All betting decisions and outcomes are your sole responsibility. Please gamble responsibly.